Economy
What Is America's National Debt and Can It Be Paid Off?
The national debt is the single most weaponized statistic in American politics. Both parties invoke it when convenient and ignore it when they are cutting taxes or increasing spending. The actual economic significance is more nuanced than either side's rhetoric.
What the Number Means
The US national debt — total outstanding federal debt — crossed $36 trillion in 2025-2026. This is approximately 120% of GDP.
That percentage comparison matters more than the absolute dollar figure. An economy producing $28+ trillion per year in output can support more debt than an economy producing $5 trillion. Japan's national debt is approximately 260% of GDP, and Japan functions as a major economy that borrows at low rates. The debt level alone doesn't determine risk.
The debt has two components:
Publicly held debt (~$28 trillion): Bonds sold to outside investors — US banks, pension funds, individual investors, the Federal Reserve, and foreign governments. This is "real" debt owed to entities that are not the US government.
Intragovernmental debt (~$8 trillion): Money the Treasury has borrowed from other government trust funds — primarily the Social Security and Medicare trust funds, which accumulated surpluses when more payroll taxes were collected than benefits paid out. These IOUs are real obligations but owed to parts of the US government.
Who Actually Holds US Debt
The most common misconception: that China holds most US debt and therefore has leverage over the US.
Reality: China holds approximately $750-800 billion in US Treasury bonds — about 2-3% of total national debt. Japan holds slightly more. Together, the largest foreign holders are significant but represent a minority of total debt.
The largest holders of US debt are US domestic investors: pension funds, money market funds, banks, insurance companies, and individual investors — all of whom need a safe, liquid, dollar-denominated asset. US Treasuries are the global benchmark for safety.
The Federal Reserve holds approximately $4-5 trillion from its quantitative easing programs, though it has been reducing this through quantitative tightening.
The Interest Cost Problem
The actual fiscal concern about the national debt is not abstract default risk. It is the cost of servicing it.
In fiscal year 2024, net interest payments on the national debt exceeded $890 billion — crossing $1 trillion when gross interest is counted. This exceeds the entire defense budget as a spending category.
As the Federal Reserve raised interest rates from near-zero to 5%+ to fight inflation, and as the existing debt rolled over into higher-rate bonds, interest costs surged. Every trillion dollars in new debt now costs approximately $40-50 billion per year in interest at current rates.
If the debt continues growing at its current pace and interest rates stay elevated, interest costs will consume an increasing share of federal revenue — crowding out everything else.
The Tax Cut-Debt Connection
The national debt increased by approximately $8 trillion during Trump's first term (2017-2021), the largest four-year increase in US history, driven substantially by the Tax Cuts and Jobs Act (2017) and COVID spending.
The "Big Beautiful Bill" currently moving through Congress in 2025-2026 would extend the 2017 tax cuts and add additional cuts, with CBO projections of $3.5-5+ trillion in additional deficits over 10 years.
Republican budget proposals claim to offset these cuts through spending reductions — primarily to Medicaid, SNAP, and other social programs. Independent analyses generally find the spending cuts don't fully offset the tax cut costs.
The fiscal result: deficits and debt growing faster than projected, with interest costs consuming more of the budget, leaving less for everything else — defense, education, infrastructure, social programs.
The deficit hawks who were loudest under Obama have been largely quiet during Republican administrations that added trillions to the debt. The politics of debt concern is strikingly partisan.